Uhlalutyo lwemigangatho ye-16 kunye neengxaki eziqhelekileyo ekufuneka zilandelwe kwi-valve hydrostatic test

Uhlalutyo lwemigangatho ye-16 kunye neengxaki eziqhelekileyo ekufuneka zilandelwe kwi-valve hydrostatic test Ukwenziwa kwee-valve yinkqubo enzima kwaye elula. Umjikelo wemveliso yeevalvu ezinjengeevalve zeglowubhu, iivalve kunye needisk valves ziqhelekile kwiintsuku ezintathu. Iivalvu kufuneka zivavanyelwe zonke iintlobo zeempawu. Uvavanyo loxinzelelo yivalve ye-sichuan inokuthwala ixabiso loxinzelelo asikokuhlangabezana neemfuno zemveliso kunye neemfuno zokuvelisa, uvavanyo loxinzelelo lwamanzi lwevalve ngokubanzi kufuneka lulandele le migangatho ilandelayo kunye neengxaki eziqhelekileyo: (1) Phantsi kweemeko eziqhelekileyo, ivalve ayenziwanga ukuba icinezele. uvavanyo lwamandla, kodwa emva kokulungiswa kwepleyiti yesekethe yeoli kunye nevalve yokuqukuqela enye okanye ipleyiti yesekethe yeoli kunye nevalve yokuqukuqela enye eyonakaliswe lukhukuliseko kufuneka kwenziwe uvavanyo lwamandla oxinzelelo. Kwiivalvu, iyunifomu kunye noxinzelelo lokubuyisela kunye nezinye iimvavanyo ziya kuhambelana neemfuno zemiyalelo yokusetyenziswa kwazo kunye neenkcukacha ezinxulumene nazo. (2) Indibano yevalve kufuneka ivavanyelwe amandla oxinzelelo kunye nokutywinwa. Ukuhlolwa kwesampulu yevalve yombane ophantsi ngama-20%, anje ngokungafanelekanga kufuneka kuhlolwe i-100%; Iivalve eziphakathi kunye noxinzelelo oluphezulu kufuneka zihlolwe i-100%. (3) Ngexesha lovavanyo, inxalenye yendibano yevalve kufuneka ibe lula kakhulu ukwenza indawo yokuhlola. (4) ivalve yohlobo lokudityaniswa kwe-welding yombane, xa uvavanyo loxinzelelo lwamanzi lwe-huang plate lungalunganga, ukutywinwa kwe-cone okanye ukutywinwa kwe-O-ring kungasetyenziselwa ukwenza uvavanyo loxinzelelo lwamanzi. (5) Xa uvavanyo loxinzelelo lwe-hydraulic, igesi yevalvu iya kususwa kangangoko kunokwenzeka. (6) Uxinzelelo kufuneka lunyuswe kancinci ngexesha lovavanyo, kwaye aluvumelekanga ukuba lunyuse uxinzelelo kakhulu kwaye ngokukhawuleza. (7) Uvavanyo lwamandla oxinzelelo kunye nohlobo lokutywinwa ubude bexesha lovavanyo ngokubanzi yi-2 --3min, isitshixo kunye nevalve ekhethekileyo kufuneka iqhubeke i-5min. Ubude bexesha lovavanyo lweevalvu ezincinci zedayamitha linokuba lifutshane, kwaye ixesha lovavanyo lweevalvu ezinkulu zedayamitha linokuba lide. Ngexesha lenkqubo yonke yovavanyo, ukuba kukho ukuthandabuza, ixesha lovavanyo linokwandiswa. Ngexesha lovavanyo lwamandla oxinzelelo, ipleyiti yesekethe yeoli kunye nevalve yokuqukuqela enye ayiyi kuvunyelwa ukuba ibile okanye ivuze. Uvavanyo lokutywina, ivalve ngokubanzi igqitywe kanye kuphela, iivalve, iivalve zoxinzelelo oluphezulu kunye nezinye iivalvu ezikrwada kufuneka ziqhube amaxesha ama-2. Xa uvavanyo, i-voltage ephantsi, i-diameter enkulu yevalve engabalulekanga kunye neemfuno zayo zokuvumela i-valve yokuvuza kwamanzi, vumela umlinganiselo omncinci wokukhupha amanzi; Ngenxa yokuba imimiselo yeevalvu eziqhelekileyo, iivalve zezityalo zamandla, iivalve zaseLwandle kunye nezinye iivalve zahlukile, imimiselo yokuvuza kufuneka iphunyezwe ngokweemfuno ezifanelekileyo. (8) Ivalve yendlela enye ayizizo iindawo ezivaliweyo zovavanyo lokutywinwa, kodwa uvavanyo lwamandla oxinzelelo kunye nokupakisha izinto kunye novavanyo lokutywinwa kwe-gasket. (9) Kuvavanyo lwe-hydrostatic, amandla okuvala ivalve avumela kuphela amandla aqhelekileyo omntu omnye ukuba avale; Musa ukuthembela kwizixhobo ezikhethekileyo ezifana nemivalo (ngaphandle kwee-wrenches ze-torque) ukufunxa ukothuka, xa i-spindle aperture idlula ukuya kwi-320mm, vumela abantu ababini ukuba bacime. (10) isivalo esitywinwe phezulu kufuneka sisuswe kwisixhobo sokuzalisa uvavanyo lokutywina, igosa lokutywina livaliwe, khangela ukuba liyavuza na. Xa usebenzisa umzimba womphunga kuvavanyo, gcwalisa amanzi kwibhokisi yesiphambuka esinoqhushumbo ukuze ahlolwe. Uvavanyo lokutywinwa kwezinto zokuzalisa, ukutywinwa akuvumelekanga kwiindawo ezikufutshane. (11) Nasiphi na isivalo esinesixhobo sokutyhala, vavanya ukutywinwa kwayo kusetyenziswa isixhobo sokutyhala ukuvala isivalo ukwenza uvavanyo lokutywina. Xa utshaba luhamba lutyhala izixhobo, uvavanyo lokutywina lwevalvu kufuneka luqhutywe. (12) uvavanyo lwamandla oxinzelelo kunye novavanyo lokutywinwa lufakwe kwivalve yokungena yevalve yokuhambisa, kwaye amandla oxinzelelo kunye novavanyo lokutywinwa lwenziwa kwivalve yokuhambisa; Xa i-valve yokusabalalisa ivuliwe, kufuneka nayo ivulwe. 13 (14) uvavanyo lwe-valve, ngaphezu kwe-valve yeplagi iyadingeka ukuvumela i-oyile phezu komhlaba, ezinye iivalve azivumelekanga ukuvavanya i-oyile phezu komhlaba. (15) uvavanyo lwe-valve hydraulic, i-valve ye-valve kwi-valve ye-valve yokudibanisa i-valve ayifanelekanga ukuba inkulu kakhulu, ukuze kuthintelwe ukuguqulwa kwevalve, ukonakalisa umphumo wokwenene wovavanyo (ivalve yentsimbi yehagu ukuba icinezelwe kakhulu, iya kuqhubeka yonakaliswa) . (16) Emva kokugqitywa kovavanyo lwe-hydraulic yevalve, ukukhutshwa kwamanzi kwivalve kufuneka kucocwe ngokukhawuleza, kwaye irekhodi yovavanyo kufuneka yenziwe. Uvavanyo lwe-valve hydrostatic luhlolo kufuneka luqhutywe ngaphambi kokuba ushiye umzi-mveliso, onokuqinisekisa ukusebenza okuthembekileyo kwevalve. Apha kucetyiswa ukuba abenzi bevalvu hydrostatic test abasebenzi ukugcina ukhuseleko lwabo, kwiminyaka yakutshanje, iingozi zokhuseleko valve hydrostatic uvavanyo, kufuneka ingqalelo. Ivalve yebhabhathane yevalufa ye-diaphragm yovavanyo lwamandla oxinzelelo ukusuka nakwesiphi na isiphelo sokuqaliswa kwezinto, esiphakathi ukuvula ivalve yepiston, esinye isiphelo sokuvalwa, uxinzelelo lovavanyo lwenyuka lwaya kwixabiso eliqhelekileyo, jonga ipleyiti yeoli kunye nevalve yokuqukuqela enye akukho kuvuza. ufanelekile. Emva koko wehlise uxinzelelo lwegazi kuxinzelelo lovavanyo lokutywina, vala ivalve yepiston, uvule elinye icala ukuze wenze uhlolo, akukho kuvuza kufanelekile. Jonga imeko yovavanyo lwevalve yevalve: uhlengahlengiso Ivalve yepneumatic butterfly ivalve ye-diaphragm yovavanyo lwamandla oxinzelelo ukusuka nakweyiphi na isiphelo sokuqaliswa kwezinto, eliphakathi ukuvula ivalve yepiston, esinye isiphelo sokuvalwa, uxinzelelo lovavanyo lunyukele kwixabiso eliqhelekileyo, jonga ipleyiti yeoli. kunye nevalve yokuqukuqela enye akukho kuvuza kwabafanelekileyo. Emva koko wehlise uxinzelelo lwegazi kuxinzelelo lovavanyo lokutywina, vala ivalve yepiston, uvule elinye icala ukuze wenze uhlolo, akukho kuvuza kufanelekile. Hlola ivalve yovavanyo lwevalve: uhlobo lokuphakamisa umgca wokukhangela ivalve yepiston kwindawo ethe nkqo; I-Swing check valve yeshaneli yokhuseleko ephakathi kunye ne-piston valve centerline zibekwe ngokuhambelana nomgca othe ngqo. Uvavanyo lwamandla olucinezelayo, ukusuka ekungeneni kokuphela kokungeniswa kwezinto zokuvavanya ukuya kwixabiso eliqhelekileyo, elinye isiphelo esivaliweyo, jonga ipleyiti yesekethe yeoli kunye nevalve yokuqukuqela enye akukho kuvuza kwabafanelekileyo. Uvavanyo lokutywina ukusuka ekupheleni kokuthumela ngaphandle kokungeniswa kwemathiriyeli yovavanyo, ekungeneni kokuphela kwendawo yokuhlola, imathiriyeli yokuzalisa kunye ne-gasket akukho kuvuza kwabafanelekileyo. Ivalve Amandla acinezelayo wevalve yokukhulula ivavanywa ngamanzi etephu, njengakwezinye iivalvu. Xa uvavanya i-bottom ye-oil circuit plate, uxinzelelo lungeniswa ukusuka ekupheleni kokungena, kwaye ubuso buvaliwe; Xa uvavanya isiphelo esiphezulu sebhodi yesiphaluka yeoli kunye ne-valve eyodwa yokuhamba, uxinzelelo lungeniswa ukusuka ekupheleni kokuphuma, kwaye enye isiphelo ivaliwe. Akukho kuvuza kwebhodi yesekethe yeoli kunye nevalve enye yokuhamba ngexesha elifunekayo. Uvavanyo lokutywina kunye novavanyo olufanayo, ukusetyenziswa ngokubanzi kwezinto: ivalve yomphunga kwi-superheated steam njengento yokuvavanya; I-ammonia okanye enye ivalve yomphunga enegesi njengesixhobo sokuvavanya; Amanzi kunye nezinye iivalvu ezingamanzi ezingadlekiyo emanzini njengemathiriyeli yovavanyo. Kwezinye iindawo eziphambili zevalve i-hydrogen eqhelekileyo njengesixhobo sovavanyo. Uvavanyo lokutywina lwenziwa ngoxinzelelo oluqhelekileyo loxinzelelo lwamanani lovavanyo lwamanani, ukuphindaphinda okungekho ngaphantsi kwamaxesha ama-2, akukho kuvuza kwixesha elifunekayo elifunekayo. Kukho iindlela ezimbini zokujonga ukuvuza: enye kukutywinwa kwamalungu evalve, kunye nebhotolo engaxutywanga ukutywina itawuli yephepha leplastiki kwiflange yokuthumela ngaphandle, iphepha leplastiki lokuvuza, hayi i-convex yabafanelekileyo; Okwesibini kukusebenzisa ibhotolo engaxutywanga kwipleyiti ebhityileyo yeplastiki okanye enye itawuli yokutywina ipleyiti kwiflaneli yokuthumela ngaphandle, ukutywina inaliti yamanzi yevalve yepiston, ukubhaqwa kwamaqamza emanzini kuyafaneleka. I-valve iyunifomu kunye nomva wovavanyo loxinzelelo lwesihlalo somva ayikho ngaphantsi kwamaxesha ama-3, ukuhlangabezana neemfuno zabaqeqeshiweyo. I-valve yokulawula uxinzelelo Uvavanyo lwamandla oxinzelelo lwe-valve yokunciphisa uxinzelelo luhlanganiswe ngokubanzi emva kovavanyo lwamacandelo, kodwa nasemva kovavanyo lokuhlanganisa. Ubude bexesha lovavanyo lwamandla oxinzelelo: DN50mm ye-1min; DN65 ~ 150mm ngaphezu kwe-2min; DN150mm ngaphezu kwemizuzu emi-3. Emva kokudibanisa intsimbi yentsimbi kunye namacandelo, uvavanyo lwamandla oxinzelelo lwenziwa ngegesi amaxesha angama-1.5 kuxinzelelo oluphezulu emva kwevalve. Uvavanyo lokutywinwa kufuneka lwenziwe ngokwezinto ezikumsebenzi wokwenyani. Xa usebenzisa igesi okanye uvavanyo lwamanzi, qhuba uvavanyo ngamaxesha e-1.1 yoxinzelelo lwe-diameter ye-nominal; Iimvavanyo ze-Steam zenziwa kwiingcinezelo eziphezulu kakhulu zokusebenza kumaqondo okushisa okusebenza. Umahluko phakathi koxinzelelo lokungena kunye noxinzelelo lokuphuma akukho ngaphantsi kwe-0.2mpa. Indlela yokuvavanya yile: emva kokuchaneka kokulawulwa koxinzelelo lwe-inlet, lungisa ngokukhawuleza i-valve yohlengahlengiso lwe-valve, ukwenzela ukuba uxinzelelo lwe-outlet kwinqanaba elikhulu kakhulu kunye nexabiso elincinci linokuthi libe li-dexterously, litshintshe ngokuqhubekayo, kungabikho ukujika, ukunamathela. Kwivalve yokunciphisa uxinzelelo lwe-steam, xa uxinzelelo lwe-inlet luhlengahlengiswa kude, vala ivalve kwaye ukhuphe ivalve, uxinzelelo lokuphuma luphezulu kwaye luncinci kakhulu, ngaphakathi kwemizuzu emi-2, ukunyuswa kwexabiso loxinzelelo lokuphuma kufuneka kufezekise iimfuno Itheyibhile 6-22, ngelo xesha, umthamo wombhobho emva kokuba i-valve ihlangabezana neemfuno kwiThebhile 6-23 ifanelekile; Kumanzi kunye nevalve yokunciphisa uxinzelelo lomoya, xa ukuchaneka kokulawulwa koxinzelelo lokungena, uxinzelelo lokuphuma luyi-zero, vala ivalve yokulawula uxinzelelo ukwenza uvavanyo lokutywina, akukho kuvuza kwi-2min kufanelekile. Indlela yoxinzelelo kunye novavanyo olupheleleyo lokuhamba kweempawu kukulungelelanisa i-inlet kunye ne-outlet yoxinzelelo kuqala, ukutshintsha i-30% ye-total flow of outlet phantsi koxinzelelo loxinzelelo apha, okanye utshintshe i-30% yoxinzelelo lwe-inlet ngaphandle kokuhambisa ukuhamba okupheleleyo, ngoko ukulinganisa ingcinezelo yokuphuma ngokuchanekileyo, kwaye ixabiso layo elincinci lifanelekile ngokuhambelana neemfuno kwiThebhile 6-24. Umgibe womphunga Zininzi iindlela zomgibe womphunga, kwaye zininzi izinto ezintsha zovavanyo. Ngokubanzi, kuphela uvavanyo lwamandla oxinzelelo, uvavanyo lwamandla oxinzelelo kunye novavanyo lokuma. Uvavanyo lwamandla oxinzelelo luyafana nezinye iivalvu. Uvavanyo lokunyanzeliswa kukuqhuba uvavanyo loxinzelelo loxinzelelo kwi-switch pressure yepompo yamanzi kunye nezinye iindawo ezivaliweyo kunye noxinzelelo lwe-1.2 amaxesha oxinzelelo oluqhelekileyo. Uvavanyo lokubuyisela kwi-steam kunye namanzi agcweleyo, i-frequency test frequency ayikho ngaphantsi kwamaxesha ama-3. Uxinzelelo lovavanyo lwenziwa kuxinzelelo oluphezulu kakhulu lokusebenza, uxinzelelo oluphantsi kakhulu lokusebenza kunye noxinzelelo oluphantsi kakhulu lokusebenza ngokulandelelanayo. I-Dexterity kwi-posture kunye nokungabikho kwe-steam ifanelekile. Uvavanyo lwe-postural kunye nokutywinwa komgibe womphunga ngokuqhelekileyo kuqhutyelwa kwibhubhoratri. Umgibe womphunga ukongeza kuvavanyo loxinzelelo, uvavanyo lwamandla oxinzelelo, uvavanyo loxinzelelo kunye nokuma kunovavanyo olushushu lokufuduswa kwe-condensate, idigri yokupholisa kakhulu, ubukhulu becala buvumela uvavanyo lohlobo loxinzelelo lwangasemva, uvavanyo lwenqanaba lokuvuza, ukukhupha igesi kunye nokusebenza okuphantsi kakhulu. uxinzelelo kuvavanyo, uvavanyo loxinzelelo oluphezulu lomsebenzi, njl, kuxhomekeke kwimeko.